Improvement in pumps



UNITED STATES PATENT OFFICE.

A. N. PARKHURST, OF PEORIA, ILLINOIS.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 37.638, dated February l0, 1863.

To all whom, it may concern:

Be it known that I, A. N. PARKHURsT, ot Peoria, in the county of Peoria and State ot` Illinois, have invented a new and Improved Pump; and I do hereby declare that the following is afull, clear, and exact description ot' the same, reference being had to the accom panying drawings, making a part of this speciication, in which- Figure l is a central sectional elevation of my invention; Fig. 2, a detached side View ot' the ange by which the pump is secured to the platform at the top of lthe well; Fig. 3, a plan or top view of the same; Fig. 4, a trans verse section of Fig. 1, taken in the line m m, Fig. 1; Fig. 5, a detached view of a valve pertaining to the same; Fig. 6, a detached side view of a coupling pertaining to the same.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improved pump of that class in which the piping is composed of' wood and the cylinder of baked clay.

The object of the invention is to obtain a more durable pump ofthe kind specified than any hitherto used, and without any more expense in the construction or manufacture of the same.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the upper part of the cylinder of a pump, B the spout or nozzle, and (l the handle. The part A of the cylinder is constructed of wood, turned or bored out in the usual way.

D is a ange, constructed of cast metal and of two semicircular parts, a a, which are tted in a recess, b, in the part A ot' the pump-cylinder and are secured together andto the cylinder by screw-bolts c c, which pass through lugs or ears d on the parts a a. (See Figs. 2 and 3.) This tlange is about one foot in diameter, and it has a collar, e, at its inner part, about one and three-quarters inches deep, and the tlange gradually tapers from its inner edge or collar to its outer edge, as `shown in Fig. 2, and has aseries of holes, f, in it near its edge, through which screws pass into the platform.

To the lower end of the part A of the pumpcylinder the lower part, E, is attached. This part E is constructed of baked clay, internally glazed, so as to have a hard vitried surface.

This part E externally is of polygonal forni, and has a circular tlange, g, both at its upper and lower end. The length of the part E may be about sixteen inches, and it has a bore ot' about three and one-fourth inches in diameter. The flanges g are circular, and about one inch and tiveeighths in thickness. In each ilange g there are three holes, and through the upper ange bolts i pass, the lower ends of which have nuts j on them. The upper ends of the bolts yi arc bent. inward to form spurs 7:, which pass into the lower part, A, of the pumpcylinder, and through these bolts screws Z pass into the part A, and an annular packing, m, is interposed between them, as shown in Fig. 1. By this means a rm connection is obtained between the parts A E of the pump cylinder. The lower end of the part E ofthe pum p-cylinder is secured to the square wooden piping F below by means of the bolts n, which pass through the lower flange, g, ot' E, and are secured to three of the sides ofF by screws o. The upper ends of the bolts a have nutsp on them, and a leather packing, q, is interposed between the lower end of E and the upper end of F, said packing having a valve, r, formed in it by cutting a circular slit in the packing, forming nearly a circle, as shown in Fig. 5. The piping F is formed in sections, indicated by the gures l, 2, 3, and 4, and these sections arc connectedv together by clamps G, which are composed of metal straps s s', ot' U form, screwed to the opposite sides of the piping near the ends of the sections. .lhe stra-ps s of one section are provided each with an ear or lug, t, through which bolts u, attached to the adjoining section, pass, the bolts u having nuts o on their upper ends. Packing w is interposed between the ends of the several sections, and the section 2 is much shorter than any one of the others, and forms a valve-box, the internal diameter of which is greater than that of the other sections of the piping. The valve a', which is between this box and section 3 of the piping, is constructed precisely like the valve 1", previously described.

A pump constructed in this manner is extremely durable. rlhe sections ofthe piping, by means of the clamps, are irmly secured together, and the part E of the pump-cylinder is also firmly secured to the part A and to the piping. The pump-cylinder is also, by means of the flange D, seeurely attached to the platform. The piston H Works in the part E of the pump-cylinder.

I do not claim, broadly, a pump Constructed of Wood and baked clay, for they have been previously used 3 but I claim as new and desire to secure by Letters Patent- A pump constructed of Wood and baked clay, having a oastmetal lange, D, attached to it, as shown, and the part E, which is formed of the baked clay, attached to the wooden part A, and to the upper section 1 of the piping by the bolts z' n, and the different sections of the piping' .secured together by means of the Clamps G, as herein set forth.

A. N. PARKHURST. Witnesses:

E. A. SWAN, C. L. GROWELL. 

